<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<%
request.removeAttribute("requestName");
request.getSession().removeAttribute("sessionName");
request.getServletContext().removeAttribute("contextName");

request.getSession().removeAttribute("UserEntity");
%>
</head>
<body>
属性事件监听新增属性、删除属性、覆盖属性！ 测试删除属性页面！
<table width=100>
    <tr>
        <td><button onclick="location.href='<%= request.getContextPath()%>/initTestListener.jsp'">init</button></td>
        <td><button onclick="location.href='<%= request.getContextPath()%>/destroyTestListener.jsp'">destroy</button></td>
    </tr>
    </table>
</body>
</html>